func_callerid: Document limitation of DNID fields.

The Dial() application does not propagate DNID fields, which is counter
to the behavior of the other Caller ID fields. This behavior is likely
intentional since the use of Dial theoretically suggests a new dialed
number, but document this caveat to inform users of it.

Resolves: #1519

diff --git a/funcs/func_callerid.c b/funcs/func_callerid.c
index e215f16e43a3fe12e6220ae12436ac85d2999c47..d70e79190414725b991c7649e56147d207a12737 100644 (file)
--- a/funcs/func_callerid.c
+++ b/funcs/func_callerid.c
@@ -127,6 +127,9 @@
                                        <enum name = "dnid-subaddr-type" />
                                        <enum name = "dnid-subaddr-odd" />
                                </enumlist>
+                               <para>Note that unlike other Caller ID fields, DNID information is not propagated
+                               by the <literal>Dial</literal> application, with the exception of
+                               Transmit Network Select (which is not currently used for anything).</para>
                        </parameter>
                        <parameter name="CID">
                                <para>Optional Caller*ID to parse instead of using the Caller*ID from the